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TYPE 100/300 Operation and Installation Handbook
Reversing Hydraulic Pump
The reversing hydraulic pump consists of a precision gear pump and an
integral check valve block driven by a continuously rated servo motor. The
pump is connected directly to the vessels steering cylinder, with the
course computer regulating the peak pump pressure.
There are three types of pump: type 1, type 2 and type 3. The different
type relates to the steering ram capacity, which is directly related to the
displacement of the vessel.
Type 1: 80 to 230 cc (4.9 to 14cu in)
Type 2: 160 to 350 cc (9.8 to 21cu in)
Type 3: 250 to 460 cc (15 to 28cu in)
'A'
117mm (4.62in)
103mm (4.07in)
D738-1
Pump Dimension 'A'
Type 1 177mm (6.96in)
Type 2 177mm (6.96in)
Type 3 235mm (9.25in)
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